Think you're smarter than a middle school science teacher and a five-legged spider alien? Test your knowledge of astrophages and musical chords before the Sun goes dark.
While suffering from amnesia, which force does Ryland Grace measure using a makeshift pendulum to determine he is no longer on Earth?
Gravity
In Andy Weir's novel, why do Rocky and other Eridians maintain a constant watch over fellow crewmates while they sleep?
Cannot wake themselves
What is the name of the infrared-emitting reddish streak extending from the sun toward Venus that is caused by swarms of energy-absorbing Astrophage?
The Petrova Line
In Andy Weir's novel, why do Eridians lack advanced computers despite their high intelligence?
Exceptional memory
Why is the titular spacecraft designed with several small engines instead of one massive engine?
Redundancy